I'm trying out the free web space. I may purchase webspace later. I intend to publish a website that offers a free trial download of a shareware program (thus, I assumed I needed an ftp server) that is available on clicking on a link labelled 'Free Download' in my website. When the link is clicked on, I want 'Windows' to display the small window with the SAVE, RUN,etc buttons on it (NOT an explorer-style web page used by drivehq). What URL/html do I put in the link on my webpage, and in which folder do I place my shareware file on my drivhq webspace?

Well, if you already have a website, you can simply use DriveHQ's "Publish" feature. Select a folder and click on Publish. Once a folder is published, you can easily find the Publish URLs linking to the folder and files in it.